Alx, make sure, that the application is not running, I mean close it from the task manager screen. That usually solves this problem. If there is connection with the watch, which you can see on the action panel and also the bluetooth icon is present on the status bar, notifications won’t arrive, maybe this is a bug in the Insider versions of Windows 10 mobile.

The app works fine, I can use the store. However, when you synchronize the calendar, the date and time of the synchronization are not written, but the data arrives at the clock.
Under the same conditions, another application is running and sending notifications. It’s also unclear why, but if I follow your advice to close the app, the clock is lost connection.
BUT its work.
funny bug

Thx.
All notifications come.
It’s amazing that you have to close your app. However, the clock and phone number are not connected, but all notifications come.
Русский допустим в этом форуме?Очень сложно постоянно пользоваться переводчиком.

Yes this is expected. The app only make a connection when it needs to. This happens when sending notifications and syncing your calendar. This is done by design in order to save battery on both your phone and watch.

Please let me know if you have issues with the timeline pins on your watch.